Being like Jason means wanting to protect people so much that you forego protecting yourself.
A big MOTTO to this statement. It's what impressed me so much in the LEGENDS mini that I posted these pages trying to illustrate the point.
In fact, the only time I've seen him walk away from a fight he might reasonably consider his own, good side or bad side, was at the end of Countdown. (Though I admit my knowledge of Jason appearances is not encyclopedic.)